If you haven’t already heard about Thunderpants headphones, they are a pair of custom built headphones created using a pair of Fostex T50RPs headphones as a base. The Thunderpants headphones currently has the audio community in a frenzy to get a hold of a pair as their sound quality after the modification is awesome and “measure with some of the finest in the world.” according to Jude over at the Head-Fi website.

You can make the modification yourself using a kit but audio community member named Smeggy who originally created the headphones has been transforming the $75 Fostex T50RPs into $550 Thunderpants headphones for sometime. You can watch a video after the jump with Jude giving you a run through of these awesome headphones.

Smeggy is able to build you a pair of Thunderpants for $550 or if you want to build your own, he’ll supply you a kit for $300.